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Basic Addition Lesson 10: Number 10

Here's an easy example:

10
+
1
=
11
 
                    
+
  
=
                      
 
   GreenYellow Box   Goldenrod Box   DeepPink Box   LawnGreen Box   RoyalBlue Box   DodgerBlue Box   Violet Box   Aquamarine Box   DarkOrchid Box   BlueViolet Box  plus     OliveDrab Box  equals     GreenYellow Box   Goldenrod Box   DeepPink Box   LawnGreen Box   RoyalBlue Box   DodgerBlue Box   Violet Box   Aquamarine Box   DarkOrchid Box   BlueViolet Box   OliveDrab Box

We start with ten boxes, add one box, and now have eleven boxes.


Here's another example:

10
+
2
=
12
 
                    
+
    
=
                        
 
   YellowGreen Box   Khaki Box   Magenta Box   Pink Box   Lavender Box   Wheat Box   HotPink Box   SteelBlue Box   Teal Box   Green Box  plus     Aqua Box   DarkKhaki Box  equals     YellowGreen Box   Khaki Box   Magenta Box   Pink Box   Lavender Box   Wheat Box   HotPink Box   SteelBlue Box   Teal Box   Green Box   Aqua Box   DarkKhaki Box

We start with ten boxes, add two boxes, and now have twelve boxes.


Try this problem.

10
+
3
=
 
                    
+
      
=
                          
 
   SlateBlue Box   MediumSlateBlue Box   SeaGreen Box   SkyBlue Box   MediumBlue Box   Gold Box   BurlyWood Box   Brown Box   DarkTurquoise Box   MediumPurple Box  plus     GreenYellow Box   Goldenrod Box   DeepPink Box  equals     SlateBlue Box   MediumSlateBlue Box   SeaGreen Box   SkyBlue Box   MediumBlue Box   Gold Box   BurlyWood Box   Brown Box   DarkTurquoise Box   MediumPurple Box   GreenYellow Box   Goldenrod Box   DeepPink Box

We start with ten boxes, add three boxes, and now have thirteen boxes.


In order to do basic addition, you must memorize some equations but fear not: FoxyMath will help you! When you are finished with this lesson, you will know the following equations:

10 + 1 = 11
10 + 2 = 12
10 + 3 = 13
10 + 4 = 14
10 + 5 = 15
10+ 6 = 16
10 + 7 = 17
10 + 8 = 18
10 + 9 = 19
10 + 10 = 20
10 + 11 = 21
10 + 12 = 22


The following exercise will help you learn the above equations and what they mean. Please take your time: take whatever time you need to learn the material.

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